Science, Maths & Technology
Dogs under the microscope
...money, drugs etc. Our ability to smell comes from protein in our noses that detects chemicals that evaporate from substances. These proteins are coded for by olfactory genes and as smell is so important, there are a lot of them in most mammals. Do you know how many numbers of genes you have that encode smell receptors? The platypus has 260, humans have 380, dogs have 800,...